>>Why not
>>
>>(1) Keep the original class
>>
>>(2) add a method crc32Unsigned() as UInteger ?
>>The method would use the existing crc32 Integer method, convert the result to UInteger and return that ?
>>
>>
>>That way, you don't have to change that public property
>
>I need to keep the existing class as is. I only want to use UInteger for the support of VFP SYS(2007).


I cannot see any harm in adding one method to your existing class



>
>>Should there be any more warnings, there must be a way to turn them off
>
>I guess so. I will have to check in the project properties Compile option.